feat: export all K8 Plus cluster manifests

Namespaces: argocd, authentik, backup-system, cloudflare-ddns,
gitea, homarr, monitoring, n8n, openclaw, polymarket-bot, vaultwarden
Cluster-wide: clusterissuers, namespaces
Secrets: redacted (structure only, data=REDACTED)

monitoring/serviceaccount-kube-prometheus-stack-prometheus-node-exporter.yaml

@@ -0,0 +1,19 @@
+apiVersion: v1
+automountServiceAccountToken: false
+kind: ServiceAccount
+metadata:
+  annotations:
+    meta.helm.sh/release-name: kube-prometheus-stack
+    meta.helm.sh/release-namespace: monitoring
+  labels:
+    app.kubernetes.io/component: metrics
+    app.kubernetes.io/instance: kube-prometheus-stack
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: prometheus-node-exporter
+    app.kubernetes.io/part-of: prometheus-node-exporter
+    app.kubernetes.io/version: 1.11.1
+    helm.sh/chart: prometheus-node-exporter-4.53.1
+    release: kube-prometheus-stack
+  name: kube-prometheus-stack-prometheus-node-exporter
+  namespace: monitoring
+